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声光偏转器是在高频功率源驱动下工作。高频信号通过超声换能器转换成超声功率信号。事实上,只有一小部分电功率转换成声功率,而大部分将以热能的形式损耗掉。由此造成换能器的升温,从而传声介质随着升温,并在介质中出现不均匀温度场分布。我们把这种现象称为热效应。测量声光器件的热效应和改善热效应,对于声光器件的应用是很重要的。要直
Acousto-optic deflector is driven by a high frequency power source. High frequency signals are converted into ultrasonic power signals by ultrasonic transducers. In fact, only a small portion of the electrical power is converted to acoustic power, and most of it is lost as heat. As a result, the temperature of the transducer is increased, so that the sound transmission medium is warmed up and uneven temperature distribution occurs in the medium. We call this phenomenon a thermal effect. Measuring the thermal effects of acousto-optic devices and improving thermal effects is important for the application of acousto-optical devices. Straight